The easiest holes to fill are small holes about the diameter of a pen or smaller.
Rusty thin sheet metal blowing holes welding.
Sheet metal on the body of cars and trucks is pretty thin usually 18 22 gauge.
The butt weld page showed how to do a seam weld using a continuous torch movement.
Make sure to use an electrode wire that is thinner as it uses lesser heat and prevents blowing holes on to the sheet metal.
The photo is 1mm steel welded at a power setting normally reserved for 2mm steel.
I m welding very t.
Stick welding sheet metal with 6013 rods.
Try going for a wire of 023 inches when welding sheet metal.
Video of the day.
Repairing rust or a rust hole on metal without welding requires a material that bonds and is as strong as metal.
The complexity of welding increases as the thickness of the material decreases.
Try applying that technique to steel less than 1mm in thickness and you are likely to blow a hole in the metal.
Try welding with a scrap sheet metal piece and practice many times until you start working on more important projects.
This is the thinnest sheet metal i have ever welded using this process.
The welding process actually adds new steel to the thin steel and can result in a repaired spot that is stronger than the original metal.
Two part epoxies are designed for this purpose and when applied to a clean surface the final repair will be undetectable after painting.
A rust hole compromises the structural integrity of the metal.